Cathrine Steinborn DDS
Disclosed Feb 20, 201511 years ago3,224 affectedConfirmed
The covered entity (CE) reported a breach of 3,224 individuals’ electronic protected health information (ePHI), as a result of an office burglary on January 5, 2015. The stolen server contained names, addresses, dates of birth, telephone numbers, social security numbers, insurance information, medical information, and billing information. The CE provided OCR with evidence that it responded to the security incident and undertook steps to prevent the risk of future security incidents by implementing physical and technical security safeguards; updating security analysis, and training the entire workforce. OCR provided technical assistance regarding the HIPAA Security Rule.
What is known
| People affected | 3,224 (as reported to HHS) |
|---|---|
| Disclosed | Feb 20, 2015 |
| Happened | Jan 5, 2015 |
| Attack | Lost or stolen device |
| Data exposed | Names, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| California Attorney General breach notice: Cathrine Steinborn DDSoag.ca.gov · Official notice | Official notice |
| HHS OCR breach report (archive, resolved): Cathrine Steinborn, DDS (Healthcare Provider, CA)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| California AGresidents of CA | Feb 20, 2015 | |
| HHS archivetotal | Feb 27, 2015 | 3,224 |
History of this record
- 2026-09-25 · sector: other to health · backfill source
- 2026-09-25 · attack: unknown to lost-device · backfill source
- 2026-09-25 · data_types: [] to ["names","health"] · backfill source
- 2026-09-25 · records_basis: empty to hhs · backfill source
- 2026-09-25 · records: empty to 3224 · backfill source
- 2026-09-25 · summary: empty to The covered entity (CE) reported a breach of 3,224 individuals’ electronic protected health information (ePHI), as a result of an office burglary on January 5, 2015. The stolen server contained names, addresses, dates of birth, telephone nu · backfill source
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.